1. Grain Protein
Relative grain crude protein levels.
2. Grain Hardiness
Based on the amount of energy required and/or the time taken to grind standard grain sample. Usually measured using a Stenvert Hardness tester.
3. Kernel Depth
Length of individual kernels from the crown to the tip cap. D = Deep; MD = Medium deep; M = Medium; S = Shallow
4. Kernel Texture: Endosperm texture
H = Hard; MH = Medium Hard; M = Medium; S = Shallow
5. Grain Drydown
Relative rate of moisture loss from grain following physiological maturity.
6. Test Weight
Based upon grain test weight (kg/hl) corrected to 14% kernel moisture content.
Rating of whole plant crude protein content.
8. Forage Starch
Rating of starch available from the forage.
9. Whole Plant Digestibility
Based on digestibility of organic matter. This provides a relative indication of the energy potential of a forage.
10. Total Energy
This takes into account estimated feed energy and yield to give relative rating for total energy harvested per hectare.
11. Disease Ratings
Please not that these ratings are not absolute. Environmental conditions play a critical role in disease development, which can, in turn, predispose plants to secondary diseases. If conditions are severe, even hybrids rated with excellent resistance can be adversely affected. Growers should balance yield potential, hybrid maturity and cultural practices (crop rotations, crop residue management etc.) against the anticipated risk of disease pressure.
12. Husk Cover
Length of husk extending over the cob. L = Long; M = Medium; S = Short.
13. Ear Flex
F = Flex (Indeterminate ear size) the hybrid has the ability to extend ear length and/or kernel rows when growing conditions allow; SF = Semi Flex ear type.
14. Early Growth
Rating of early growth to the 5th collared leaf stage.
15. Relative Plant Height
T = Tall; MT = Medium tall; M = Medium; S = Small
A measure of late season plant health. A lower score means the plant stover dries down more rapidly as it approaches maturity.
17. Comparable Relative Maturity (CRM)
Rating based on Growing Degree Units (GDU) to silage harvest and harvest moisture relative to other Corson Maize Seed maize hybrids.